Sweetheart Blueberry

Planting Sweetheart Blueberry

Sweetheart is a highbush blueberry that produces large, sweet berries and can often fruit twice in one season with good care.

• Sun: Plant in full sun (6–8+ hours daily).
• Soil: Blueberries require acidic, well-drained soil with a pH of 4.5–5.5. Mix in peat moss or other acidic organic matter if needed.
• Spacing: Plant 4–5 feet apart.
• Planting: Dig a hole twice as wide as the root ball and the same depth. Loosen the roots if they are circling. Set the plant at the same depth it was growing in the nursery pot. Backfill and gently firm the soil.
• Watering: Water thoroughly immediately after planting. For the first 6–8 weeks, keep the soil consistently moist by watering deeply 2–3 times per week, adjusting for rainfall. After establishment, provide about 1–2 inches of water per week. Avoid letting the soil dry out completely.
• Mulch: Apply 2–4 inches of pine bark, pine needles, or wood chips, keeping mulch a few inches away from the stem.
• Fertilizer: Wait until new growth begins, then use a fertilizer formulated for blueberries or other acid-loving plants. Follow the label and avoid overfertilizing.
• Pollination: Sweetheart is self-fertile, but planting another highbush blueberry variety nearby can improve yields and berry size.
• Harvest: Pick berries when they are fully blue and detach easily. They will continue ripening over several weeks.

Container Growing

Use a container at least 18–24 inches wide with drainage holes. Fill with an acidic potting mix, keep the soil evenly moist, and fertilize with a product for acid-loving plants according to the label. Repot into a larger container as the plant grows.

Sweetheart Blueberry Bush FAQs

1. Why is it called the Sweetheart Blueberry?

Sweetheart stands out because it produces two harvests in one growing season. You'll typically enjoy a large crop in late spring or early summer, followed by a second harvest in August, giving you fresh blueberries for much longer than many other varieties.

2. Does the Sweetheart Blueberry need another plant to produce fruit?

Sweetheart is self-pollinating, so it can produce fruit on its own. However, planting another blueberry variety nearby that blooms around the same time can improve pollination, leading to larger harvests and bigger berries.

3. How many blueberries can I harvest from one plant?

Once established, a mature Sweetheart Blueberry Bush can produce up to 15 pounds of fruit each year under ideal growing conditions. Harvest berries when they are fully blue and come off the stem easily for the sweetest flavor.

4. Can I grow a Sweetheart Blueberry Bush in a container?

Yes. Sweetheart grows well in large containers, making it a great choice for patios, decks, and small spaces. Use an acidic potting mix, provide plenty of sunlight, and water consistently to keep the plant healthy and productive.

5. When is the best time to harvest the berries?

Sweetheart produces its first crop in late spring to early summer, with a second crop typically arriving in August. Pick berries when they are completely blue and slightly soft. Fresh blueberries store well in the refrigerator and are perfect for eating fresh, baking, freezing, or making homemade jams.